The NOAA SPACE WEATHER PREDICTION CENTER has issued a G2 (MODERATE) GEOMAGNETIC STORM WATCH FOR 22-23 JAN.
A CME was observed lifting off the Sun on 20 Jan and is expected to cause up to G2 (Moderate) geomagnetic storming on 22-23 Jan (UTC days). A watch has been issued.
NOAA SWPC states a G2 storm can do the following:
Power systems: High-latitude power systems may experience voltage alarms, long-duration storms may cause transformer damage.
Spacecraft operations: Corrective actions to orientation may be required by ground control; possible changes in drag affect orbit predictions.
Other systems:�HF radio propagation can fade at higher latitudes, and aurora has been seen as low as New York and Idaho (typically 55° geomagnetic lat.).
However, there is the possibility with this being a direct hit from the coronal mass ejection (CME) that it could increase to a G3 according to space weather physicist Tamitha Skov who posted on X, formerly Twitter, on Sunday.
A G3 strom can cause the following:
Power systems: Voltage corrections may be required, false alarms triggered on some protection devices.
Spacecraft operations: Surface charging may occur on satellite components, drag may increase on low-Earth-orbit satellites, and corrections may be needed for orientation problems.
Other systems: Intermittent satellite navigation and low-frequency radio navigation problems may occur, HF radio may be intermittent, and aurora has been seen as low as Illinois and Oregon (typically 50° geomagnetic lat.).
Much is let to be seen and further reading and updates can be found at the NOAA SWPC website https://www.swpc.noaa.gov/